We have the Everest which is the same size,different floorplan. We too omitted the oven as the Micro is a convection type. This gives you a couple more drawers. They also offer storage cabinets over the couch and the dinning table which increases storage. Really is plenty of storage.
We also tote ours on a 3500 1-ton dually. Although I do have heavier springs and air bags. Hauls the camper easily. Only thing I feel is a must is a exhaust brake.
The triple slides are unbelievably comfortable. We also toured the Host factory and was impressed with their quality. Ours is a 2008 and haven;t had one problem with it yet(probably shouldn't have said that).
There are alot of processes they do/or don't do that's different from others,i.e., vacuum bonding walls in house,welding processes, no lumber sandwhiched in the tubing(rather they use heavier tubing),etc. Might want to investigate the manufacturers processes.
The Mammoth is definitely a Cadillac.